1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marrrta [24]
3 years ago
6

I need help please):

Mathematics
1 answer:
Neko [114]3 years ago
7 0

Answer:

7) x = 5

8) x = 10

Step-by-step explanation:

7) 2x-3=x+2

x=5

8) 4x=2x+20

2x=20

x=10

You might be interested in
Plz help
Len [333]
52x38=1976, 1976 is the answer
5 0
3 years ago
Please this a really easy question. Does this mean I got an A on this test?! Please answer!!!!!!!!!!!!!!!
AnnZ [28]

Answer:

yes it does. good job on your A.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A right cylinder has a radius of 5 and a height of 9. What is its surface area?​
harkovskaia [24]

Answer:

B. 140π units²

Step-by-step explanation:

Surface area of a cylinder:

2πrh + 2πr²

2π(5)(9) + 2π(5²)

90π + 50π

140π

5 0
3 years ago
The sum of x and 3 times y is 5. The difference of x and y is 5. Write two equations and graph to find the value of y.
kupik [55]

Answer:

for the first one, x + 3 * y = 5

and the second equation, x - y = 5

Step-by-step explanation:

the sum of two numbers means for example the sum of 5 and 8 is 13, so as an equation that is 5 + 8 = 13

the difference is the same thing as the sum but it's subtraction.

and then times is just multiplication.

5 0
2 years ago
Suppose that in a random sample of 300 employed Americans, there are 57 individuals who say that they would fire their boss if t
otez555 [7]

Answer:

The 95% confidence interval for the population proportion is (0.1456, 0.2344). This means that we are 95% sure that the true proportion of employed American who say that they would fire their boss if they could is between 0.1456 and 0.2344.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 300, \pi = \frac{57}{300} = 0.19

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.19 - 1.96\sqrt{\frac{0.19*0.81}{300}} = 0.1456

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.19 + 1.96\sqrt{\frac{0.19*0.81}{300}} = 0.2344

The 95% confidence interval for the population proportion is (0.1456, 0.2344). This means that we are 95% sure that the true proportion of employed American who say that they would fire their boss if they could is between 0.1456 and 0.2344.

4 0
3 years ago
Other questions:
  • Three farmers buy a total of 2,249 acres of land at an auction, Farmer Mel buys land that is 3 times as many acres as Farmer Cas
    14·1 answer
  • What does each unit rate tell u
    11·1 answer
  • !!20 POINTS!!
    5·1 answer
  • Solve for the inverse of the following function:<br><br> f(x)=4x-16
    13·1 answer
  • Make g the subject of the formula.
    6·2 answers
  • What is the factor of 40,24,16
    11·1 answer
  • Cada material en sus distintos estados de agregacion, cambia de volumen de forma diferente, sin embargo todos lo hacen en cierta
    9·1 answer
  • Hey I am super confused about the equation below. plzz help!!!
    8·1 answer
  • Three fourths of a class brought bundles of old papers to school. If 40 students were in class, how many students brought papers
    5·1 answer
  • URGENT!!! plz help will give brainlist question is in photo
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!